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Time-domain THz spectroscopy of the characteristics of hydroxyapatite provides a signature of heating in bone tissue

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Academic year: 2021

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Figure

Fig 1. Macroscopic and nanoscale evolution of HA upon heating. a) sample preparation scheme; b) color changes of bone sticks as a function of temperature; scale bar 10 mm; c) SEM images showing the nanoscale heating effect on ns-HA, and compared to s-HA an
Fig 2. THz absorption spectra of bone and synthetic reference calcium phosphate compounds
Fig 3. X-ray diffraction patterns collected from a) untreated and heat-treated bone tissues, and b) untreated and heat-treated commercial hydroxyapatite powder (ns-HA)
Fig 4. Simulation of THz spectra (continuous lines) by calculation of the normal modes of vibrational with DFT and experimental THz absorption data (dotted lines)

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